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#1
09-09-2021, 02:46 PM
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Crower 72827-16 aluminum rockers
I know the stainless rockers are high quality. How are the aluminum? From what I have seen, most just stick with stamped for low end builds or buy high quality Harland Sharps. How do these compare?
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1970 GTO 400 Atoll Blue, PS, PDB, A/C Was M20 4 speed, now has Keisler RS600 5 speed. |
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#2
09-09-2021, 04:23 PM
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Before I would go for cheap rollers that can and do fail and dump shrapnel your motor, I would install new stamped steel factory types in a heart beat!
Just confirm that the slot is long enough for your amount of lift and then save up for Sharp’s or stainless steel rollers. The only time I have seen factory stamped steel rockers ware badly at there nose is when used valves have been shortened and left with a course finish, or when naturally the geometry is off by a good amount. Super stock racers use stamped ones with no issues with far more spring pressure then you will likely be running!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! Last edited by steve25; 09-09-2021 at 05:11 PM. |
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#3
09-09-2021, 05:09 PM
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Crower and Harland Sharp are the only 2 I'll use. Primarily Crower on all builds but if I'm forced to use aluminum Harland Sharp is all I'll consider.
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#4
09-10-2021, 02:17 AM
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Everything else Crower makes is good quality, so I would ASSUME that their rockers are good, too. But, that's just an assumption...
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---------------------------- '72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car! '73 Firebird 350/4-speed Black on Black, mix & match. |
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#5
09-10-2021, 07:55 AM
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FWIW.... Crower has discontinued their Pontiac aluminum roller rocker arms.
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#6
09-10-2021, 08:19 AM
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They are on clearance on the Crower site.
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1970 GTO 400 Atoll Blue, PS, PDB, A/C Was M20 4 speed, now has Keisler RS600 5 speed. |
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#7
09-10-2021, 09:54 AM
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The Crower aluminum BBC are kind of bulky compared to their SS rockers.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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